ScarecrowES, on 08 June 2015 - 03:45 PM, said:
Your first statement is not actually true at all. It's exactly why Elo cannot be used to accurately judge the performance of individual players on a team relative to other players. What you've stated is a fundemental misunderstanding of how Elo works.
No it isn't. This is only the case if you assume completely static skill levels across the entire playerbase. But that isn't the case. If everybody's ability sat stagnant, then sure, everybody would eventually trend to 50%. But this isn't the case, so your ability to affect a match, relative to the guys on the other team's abilities to affect the outcome of a match, will be reflected in your W/L.
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Your second statement is truer. But you've fundementally just expressed that if your personal performance is above what is typical for your Elo rating, your team will benefit from your improved play. Clearly that statement will always be true regardless of what your Elo says. However, the same could be said of any player on either team, and oppositely if an individual player is playing below his level. And certainly the generally random nature of matches cannot be taken into account here.
Which is why you require a large sample size to iron out the kinks. The same is true of any statistic.
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Expressing the problem with W/L or Elo further... you can be the world's best quarterback, but if you're saddled with a team that can't catch or run the ball, you will lose. You will lose consistently, despite your spectacular individual play. Will your play make your team more likely to win than if you were sitting on the sideline? Sure. However, how much your individual play can effect the outcome of the match will depend on the circumstances of the match. It isn't entirely random, but for all intents and purposes it's little more than trying to overcome chaos.
This isn't an Elo problem, since the matchmaker structures roughly even teams and it's no more likely that your team will be idiots relative to the other team than that the teams will be relatively evenly distributed. Pandering to a statistical anomaly doesn't invalidate the relevance of the W/L statistic.
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You win/loss ratio might as well be entirely random in pug play, and your Elo is only ever partially under your own influence.
Well, it isn't. Since all of the randomness over a large sample size will trend towards your true level of performance.
This is basic stuff, people.
Edited by RampancyTW, 08 June 2015 - 03:54 PM.